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Lincoln Electric 1433-000-E Service Manual

Impringer conveyor oven
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SERVICE MANUAL
IMPINGER CONVEYOR OVENS
1450digexport
(INTERNATIONAL)
MODEL 1433-000-E, 1434-000-E,
1456, 1457
WITH PUSH BUTTON CONTROLS
Lincoln Foodservice Products, LLC
1111 North Hadley Road
Fort Wayne, Indiana 46804
United States of America
Phone : (800) 374-3004
U.S. Fax: (888) 790-8193 • Int'l Fax: (260) 436-0735
Technical Service Hot Line
www.lincolnfp.com
(800) 678-9511
REV 1/5/07

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Summary of Contents for Lincoln Electric 1433-000-E

  • Page 1 SERVICE MANUAL IMPINGER CONVEYOR OVENS MODEL 1433-000-E, 1434-000-E, WITH PUSH BUTTON CONTROLS U.S. Fax: (888) 790-8193 • Int’l Fax: (260) 436-0735 1450digexport (INTERNATIONAL) 1456, 1457 Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 United States of America...

  • Page 2: Sequence Of Operation

    50 HZ. 220/240VAC 50 HZ. 220/240VAC 50 HZ. Electrical power is to be supplied to the oven by a three conductor service. Brown conductor is hot. Blue conductor is neutral. Green conductor is ground. When the temperature in the control box reaches 120°F ± 3°F (48.9°C ±...
  • Page 3 SCHEMATIC DIAGRAM MODEL 1433-000-E, 1434-000-E SERIAL NUMBER N28654 TO N31348 Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 4 SCHEMATIC DIAGRAM MODEL 1456, 1457 SERIAL NUMBER N28654 TO N31348 Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 5 SCHEMATIC DIAGRAM MODEL 1433-000-E, 1434-000-E, 1456, 1457 SERIAL NUMBER N31349 AND ABOVE Impinger I – Adv Digital – Gas Service Manual – International...

  • Page 6: Troubleshooting Guide

    See “Cooling fan thermostat” (NOTE: Thermostat will remain closed if control box temperature remains above 120°F. If not operating, refer to “Oven fan will not run” Check for adequate gas supply and be sure that the manual gas shut off valve is open. Also check flexible gas line connection.
  • Page 7 2 and 3. If no continuity, check the following: Proper gas pressure supply to gas valve as marked on the oven specification plate. Check for proper adjustment of the gas pressure switch, 10 for Nat. gas, 27 for LP gas or 4.5 for town gas.
  • Page 8 If the above check okay, replace ignition control. If not operating, refer to “Oven fan will not run” Check for adequate gas supply and be sure that the manual gas shut off valve is open. Also check flexible gas line connection..
  • Page 9 “Temperature regulation valve “. If there is no voltage at the temperature regulation valve, trace wiring back to the oven control. If there is no voltage output at the oven control, check the read-out on the oven control. If the oven control reads “PROBE FAIL”...
  • Page 10 If the thermocouple checks good, but the oven control display indicates that there is a thermocouple failure, replace the oven control. If the oven control indicates a temperature reading, but the oven will not heat, proceed. WITH POWER ON AND THERMOCOUPLE ATTACHED TO THE OVEN CONTROL: Measure the DC millivolt output of the thermocouple.
  • Page 11 Measure voltage at the motor connector, red wire and yellow wire. Voltage should be approx. 10VDC. If no voltage is present, trace wiring back to oven control. If there is no voltage output at the oven control, replace oven control.
  • Page 12 Shut off power at main breaker. Remove back assembly. (See MOTOR, MAIN FAN)) Reinstall and locate fan so that the bottom of the fan spider is 1 1/2" from the top of the oven back cone. (See Drawing) FAN SPIDER...
  • Page 13 THERMOSTAT, COOLING FAN - REPLACEMENT 1. Shut off power at main breaker. 2. Remove control panel top and front cover. 3. Remove lead wires and mark for reassembly. 4. Remove two (2) screws and remove thermostat. 5. Reassemble in reverse order. BURNER BLOWER MOTOR - REPLACEMENT 1.
  • Page 14 9. Remove piping from old valve and reassemble in reverse order. 10. Check system for proper operation. Check all gas line fittings for leaks. 11. Adjust the gas manifold pressure on the gas valve. Refer to the specification plate on the oven for proper rating. TEMPERATURE REGULATION VALVE - REPLACEMENT 1.
  • Page 15 4. Remove two (2) wires from temperature control. Make note of wire numbers or color and location for reinstallation. 5. Reassemble in reverse order making sure the metal end on the thermocouple is in the wire form in the oven chamber.
  • Page 16 1. Shut off power at oven switch. 2. Set conveyor reversing switch in the other position. 3. Turn oven “on” and check for proper operation. MAIN ORIFICE - REPLACEMENT 1. Shut off power at main breaker.
  • Page 17 Set the oven control for the proper operating mode. The 1400 series ovens use a single temperature control system. The oven control must be set to the proper operating mode. Set the control as follows: With the oven power switch “off”, depress the “time” and “up” buttons and turn the oven “on”. Control will indicate “Imp I or Imp II”...
  • Page 18 Door assembly (solid) 369157 Door assembly (with window) 1534 Finger support assembly 369057 Support bracket pin 369643 Strike assembly 1009 Oven top 369062 Top, control box 369140 Compression spring 369903 Washer, flat 369141 Conveyor hold down bracket 369139 Shoulder screw...
  • Page 19 Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 20 LETTER Not shown Not shown CONTROL BOX 1456,1457,1433-000-E, 1434-000-E PART # DESCRIPTION 369062 Top, Control Panel 370355 Oven Control 370363 Front Cover Assembly 370354 Facia, Label 369432 Switch, On/Off 369580 Gas Valve, Multi Block (S/N N31348 & Below) 370433 Gas Valve (S/N N31349 & Above)
  • Page 21 Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 22 Cover, motor (electric ovens) 369214 Motor, main fan (50 Hz.) 369033 Motor clamp 369215 Motor support assembly 369192 Capacitor, 7.5 MFD 369306 Oven back assembly, gas oven 369646 Stand-off 369647 Inlet panel 369213 Main fan 369547 Bracket, thermostat 369287 Heating element, 208V...
  • Page 23 Impinger I – Adv Digital – Gas Service Manual – International...

  • Page 24: Conveyor 1450 Series

    LETTER CONVEYOR 1450 SERIES PART NUMBER DESCRIPTION 369830 Complete conveyor assembly 369816 Conveyor belt, complete (30 inch wide belt) 369163 Conveyor belt, complete (32 inch wide belt) 370092 Conveyor belt, 1 foot section (30 inch wide belt) 369362 Conveyor belt, 1 foot section (32 inch wide belt) 369825 Retaining ring 369813...
  • Page 25 Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 26 This page intentionally left blank. Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 27 This page intentionally left blank. Impinger I – Adv Digital – Gas Service Manual – International...
  • Page 28 Lincoln Foodservice Products, LLC 1111 North Hadley Road Fort Wayne, Indiana 46804 United States of America Telephone: (260) 459-8200 U.S. Facsimile: (888) 790-8193 Int’l Facsimile: (260) 436-0735 Technical Service Hotline: (800) 678-9511 www.lincolnfp.com Impinger I – Adv Digital – Gas Service Manual – International...

This manual is also suitable for:

14571434-000-e14561456-000-e1457-000-e